Struct sp_std::num::NonZeroI1281.34.0[][src]

#[repr(transparent)]pub struct NonZeroI128(_);

An integer that is known not to equal zero.

This enables some memory layout optimization. For example, Option<NonZeroI128> is the same size as i128:

use std::mem::size_of;
assert_eq!(size_of::<Option<core::num::NonZeroI128>>(), size_of::<i128>());

Implementations

impl NonZeroI128[src]

pub const unsafe fn new_unchecked(n: i128) -> NonZeroI1281.34.0 (const: 1.34.0)[src]

Creates a non-zero without checking the value.

Safety

The value must not be zero.

pub const fn new(n: i128) -> Option<NonZeroI128>1.34.0 (const: 1.47.0)[src]

Creates a non-zero if the given value is not zero.

pub const fn get(self) -> i1281.34.0 (const: 1.34.0)[src]

Returns the value as a primitive type.

impl NonZeroI128[src]

pub const fn leading_zeros(self) -> u32[src]

🔬 This is a nightly-only experimental API. (nonzero_leading_trailing_zeros)

Returns the number of leading zeros in the binary representation of self.

On many architectures, this function can perform better than leading_zeros() on the underlying integer type, as special handling of zero can be avoided.

Examples

Basic usage:

#![feature(nonzero_leading_trailing_zeros)]
let n = std::num::NonZeroI128::new(-1i128).unwrap();

assert_eq!(n.leading_zeros(), 0);

pub const fn trailing_zeros(self) -> u32[src]

🔬 This is a nightly-only experimental API. (nonzero_leading_trailing_zeros)

Returns the number of trailing zeros in the binary representation of self.

On many architectures, this function can perform better than trailing_zeros() on the underlying integer type, as special handling of zero can be avoided.

Examples

Basic usage:

#![feature(nonzero_leading_trailing_zeros)]
let n = std::num::NonZeroI128::new(0b0101000).unwrap();

assert_eq!(n.trailing_zeros(), 3);

Trait Implementations

impl Binary for NonZeroI128[src]

impl BitOr<NonZeroI128> for NonZeroI1281.45.0[src]

type Output = NonZeroI128

The resulting type after applying the | operator.

impl BitOr<NonZeroI128> for i1281.45.0[src]

type Output = NonZeroI128

The resulting type after applying the | operator.

impl BitOr<i128> for NonZeroI1281.45.0[src]

type Output = NonZeroI128

The resulting type after applying the | operator.

impl BitOrAssign<NonZeroI128> for NonZeroI1281.45.0[src]

impl BitOrAssign<i128> for NonZeroI1281.45.0[src]

impl Clone for NonZeroI128[src]

impl Copy for NonZeroI128[src]

impl Debug for NonZeroI128[src]

impl Display for NonZeroI128[src]

impl Eq for NonZeroI128[src]

impl From<NonZeroI128> for i1281.31.0[src]

pub fn from(nonzero: NonZeroI128) -> i128[src]

Converts a NonZeroI128 into an i128

impl From<NonZeroI16> for NonZeroI1281.41.0[src]

Converts NonZeroI16 to NonZeroI128 losslessly.

impl From<NonZeroI32> for NonZeroI1281.41.0[src]

Converts NonZeroI32 to NonZeroI128 losslessly.

impl From<NonZeroI64> for NonZeroI1281.41.0[src]

Converts NonZeroI64 to NonZeroI128 losslessly.

impl From<NonZeroI8> for NonZeroI1281.41.0[src]

Converts NonZeroI8 to NonZeroI128 losslessly.

impl From<NonZeroU16> for NonZeroI1281.41.0[src]

Converts NonZeroU16 to NonZeroI128 losslessly.

impl From<NonZeroU32> for NonZeroI1281.41.0[src]

Converts NonZeroU32 to NonZeroI128 losslessly.

impl From<NonZeroU64> for NonZeroI1281.41.0[src]

Converts NonZeroU64 to NonZeroI128 losslessly.

impl From<NonZeroU8> for NonZeroI1281.41.0[src]

Converts NonZeroU8 to NonZeroI128 losslessly.

impl FromStr for NonZeroI1281.35.0[src]

type Err = ParseIntError

The associated error which can be returned from parsing.

impl Hash for NonZeroI128[src]

impl LowerHex for NonZeroI128[src]

impl Octal for NonZeroI128[src]

impl Ord for NonZeroI128[src]

impl PartialEq<NonZeroI128> for NonZeroI128[src]

impl PartialOrd<NonZeroI128> for NonZeroI128[src]

impl StructuralEq for NonZeroI128[src]

impl StructuralPartialEq for NonZeroI128[src]

impl TryFrom<NonZeroI128> for NonZeroI161.49.0[src]

Attempts to convert NonZeroI128 to NonZeroI16.

type Error = TryFromIntError

The type returned in the event of a conversion error.

impl TryFrom<NonZeroI128> for NonZeroU161.49.0[src]

Attempts to convert NonZeroI128 to NonZeroU16.

type Error = TryFromIntError

The type returned in the event of a conversion error.

impl TryFrom<NonZeroI128> for NonZeroI321.49.0[src]

Attempts to convert NonZeroI128 to NonZeroI32.

type Error = TryFromIntError

The type returned in the event of a conversion error.

impl TryFrom<NonZeroI128> for NonZeroU1281.49.0[src]

Attempts to convert NonZeroI128 to NonZeroU128.

type Error = TryFromIntError

The type returned in the event of a conversion error.

impl TryFrom<NonZeroI128> for NonZeroI641.49.0[src]

Attempts to convert NonZeroI128 to NonZeroI64.

type Error = TryFromIntError

The type returned in the event of a conversion error.

impl TryFrom<NonZeroI128> for NonZeroI81.49.0[src]

Attempts to convert NonZeroI128 to NonZeroI8.

type Error = TryFromIntError

The type returned in the event of a conversion error.

impl TryFrom<NonZeroI128> for NonZeroUsize1.49.0[src]

Attempts to convert NonZeroI128 to NonZeroUsize.

type Error = TryFromIntError

The type returned in the event of a conversion error.

impl TryFrom<NonZeroI128> for NonZeroU321.49.0[src]

Attempts to convert NonZeroI128 to NonZeroU32.

type Error = TryFromIntError

The type returned in the event of a conversion error.

impl TryFrom<NonZeroI128> for NonZeroU641.49.0[src]

Attempts to convert NonZeroI128 to NonZeroU64.

type Error = TryFromIntError

The type returned in the event of a conversion error.

impl TryFrom<NonZeroI128> for NonZeroU81.49.0[src]

Attempts to convert NonZeroI128 to NonZeroU8.

type Error = TryFromIntError

The type returned in the event of a conversion error.

impl TryFrom<NonZeroI128> for NonZeroIsize1.49.0[src]

Attempts to convert NonZeroI128 to NonZeroIsize.

type Error = TryFromIntError

The type returned in the event of a conversion error.

impl TryFrom<NonZeroIsize> for NonZeroI1281.49.0[src]

Attempts to convert NonZeroIsize to NonZeroI128.

type Error = TryFromIntError

The type returned in the event of a conversion error.

impl TryFrom<NonZeroU128> for NonZeroI1281.49.0[src]

Attempts to convert NonZeroU128 to NonZeroI128.

type Error = TryFromIntError

The type returned in the event of a conversion error.

impl TryFrom<NonZeroUsize> for NonZeroI1281.49.0[src]

Attempts to convert NonZeroUsize to NonZeroI128.

type Error = TryFromIntError

The type returned in the event of a conversion error.

impl TryFrom<i128> for NonZeroI1281.46.0[src]

Attempts to convert i128 to NonZeroI128.

type Error = TryFromIntError

The type returned in the event of a conversion error.

impl UpperHex for NonZeroI128[src]

Auto Trait Implementations

Blanket Implementations

impl<T> Any for T where
    T: 'static + ?Sized
[src]

impl<T> Borrow<T> for T where
    T: ?Sized
[src]

impl<T> BorrowMut<T> for T where
    T: ?Sized
[src]

impl<T> From<T> for T[src]

impl<T, U> Into<U> for T where
    U: From<T>, 
[src]

impl<T> ToOwned for T where
    T: Clone
[src]

type Owned = T

The resulting type after obtaining ownership.

impl<T> ToString for T where
    T: Display + ?Sized
[src]

impl<T, U> TryFrom<U> for T where
    U: Into<T>, 
[src]

type Error = Infallible

The type returned in the event of a conversion error.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, 
[src]

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.